# ALLNET Switch Module ALL4778 SFP28 25G Singlemode up to 10 km, uncoded

**URL:** https://aio.lv/en/product--allnet-all4778--11079823
**Data updated:** 2026-03-17 20:26 (EET)
**Category:** Other goods
**Manufacturer:** ALLNET
**Manufacturer code:** ALL4778
**EAN:** 4038816096616
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 84.99 €
**Prices and availability valid until:** 2026-08-15 23:59
**Price without VAT (21%):** 70.24 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--allnet-all4778--11079823

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.08.2026 | free |
| Pickup points | 18.08.2026 | 1.89 EUR |
| Courier delivery to door | 18.08.2026 | 4.99 EUR |

## Summary description

ALLNET ALL4778 SFP28 switch module provides 25 Gbit/s singlemode connectivity over distances up to 10 km. Designed as an SFP28 transceiver module, it supports 25G links for network switches and routers. The uncoded singlemode module is suitable for long-reach optical uplinks, data center interconnects and enterprise backbone links.

## Long description

The ALLNET ALL4778 SFP28 25G singlemode transceiver delivers 25 Gbit/s optical connectivity over singlemode fibre for reaches up to 10 kilometres. Designed for use in SFP28 ports, this uncoded module supports high-speed uplinks and interconnects between switches and routers in data centre and enterprise networks. Its form factor and electrical/optical characteristics match standard SFP28 interfaces, enabling straightforward replacement or upgrade of existing 25G links.
Advantages
This SFP28 module provides a 25G singlemode optical link suitable for long-reach connections up to 10 km without dispersion compensation or additional inline devices. The uncoded design minimises protocol-specific processing on the module while maintaining compatibility with a wide range of host devices that support 25G SFP28 optics. Its compact SFP28 form factor conserves port density in switches and routers and simplifies deployment in rack environments.
Suitable for
 25G uplinks between switches and routers
 Data centre interconnects over singlemode fibre
 Enterprise backbone and campus backbone links
 Long-reach server or aggregation links up to 10 km
Key specifications
 Nominal data rate: 25 Gbit/s
 Optical medium: singlemode fibre
 Maximum reach: up to 10 kilometres
 Form factor: SFP28
 Coding: uncoded optical interface
How to use
Install the transceiver into an available SFP28 port on a compatible switch, router or network device while the host port is powered down or following the host manufacturer's hot-plug instructions. Connect a suitable singlemode LC fibre patch cable between the module and the remote device, ensuring correct transmit/receive orientation. Verify link status and speed in the host device management interface and confirm that the interface is configured for 25G operation and the appropriate optical settings.
Usage recommendations
Use singlemode fibre rated for long-reach connections and keep fibre connectors clean to maintain signal quality. Confirm host device compatibility with uncoded 25G SFP28 modules and ensure fibre link loss budget supports operation up to 10 km. For critical links, monitor optical power and error statistics from the host device to detect degradations early.

## FAQ

### How much does the ALLNET ALL4778 SFP28 25G Singlemode module cost, and is it available for purchase?

The price is 84.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 13.08.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All ALLNET products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized ALLNET service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

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